Weather strip



NW, 25, 1941. H DUNHAM 2,263,872

WEATHER STRIP Filed Feb. 15, 1940 2 Sheets-Sheet 1 Inventor m M m m M m A llbmey Nov. 25, 1941.

R. H. DUNHAM WEATHER STRIP Filed Feb. 15, 1940 2 Sheets-Sheet 2.

Alomey Patented Nov. 25, 1941 UNITED STATES PATENT OFFICE.

WEATHER STRIP Reginald H. Dunham, Oklahoma City, Okla.

Application February 15, 1940-,Scrial No. 319,120

2 Claims.

The present invention relates to new and useful improvements in weather strips particularly for windows of the double-hung, sliding sash type although it will be understood, of course, that the invention may be used for any other purpose for which it may be found .adapted and desirable.

An important object of the present inventionv is to provide, in a manner as hereinafter set forth, a weather strip of theaforementioned character comprising a novel construction and arrangement whereby thesashes may swell or shrink in the ways without moving away from the parting strips.

Another very important object of the invention is to provide a weather strip of the character Still another very important object ofthe in vention is to provide a weather strip of the character set forth embodying a construction which is such that the window sashes may be expeditiously removed if desired without'thenecessity of removing the weather strips from the window frame.

Still another very important object of the invention is to provide a weather strip embodying such a construction and arrangement as to assure free sliding movement of the sashes-under substantially all conditions.

Other objects of the invention are to provide a weather strip of the character set forth which will be comparatively simple in construction, strong, durable, highly efiicient and reliable in use, compact, inconspicuous and which may be manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure l is a view in horizontal section through one side portion of a window equipped with a weather strip in accordance with the present invention.

Figure 2 is a perspective view of an end portion of the weather strip.

Figure 3 is a perspective view of an end portion of the parting strip.

Figure 4 is a perspective View of a corner portion of one of the window sashes.

Figure 5 is a perspective view of an-end portion of a weather stripwhich is for use with a single sash.

Figure 6 isa view in horizontal section through a side-portion of a window, showing another form of the invention.

Figure 'lis a perspective view of an end portion of the modified weather strip.

Figure 8 is a perspective-view of a corner portion of the window sash which is used with the modification.

Figure 9 is a perspective view of an end'portion of the form of the modification for use with a single'sash. I

Referring now to the drawings in ,detail, it will beseen'thatthe. reference numeral I designates generally a sideportion of a window frame. The frame I comprises ajamb 2 having mounted thereon a ,windowstop 3 anda blind stop or the liked.

The jamb 2 is further provided .with a vertical groove or channel 5 for the reception of a parting strip 6. Thus, ways 1 are provided which accom-modate the verticallyslidablesashes 8. The vertical sideedges of-the sashes 8 have formed therein grooves or channels 9- the purpose of which will be presently set forth. .The parting strip 6 is dovetailed in cross section, having undercuts ID in its sides.

Mounted onithe parting strip 6 is a weather strip of suitable resilient sheet metal which is designated generally by the reference numeral .II. The weather strip ,Il comprises achannel member l2 which is adapted to i straddle the parting strip ,said channel member having openings l3 at spaced points for the passage of securing elements, such as nails I 4, for firmly fastening the Weather strip in position. Formed on the bight portion of the channel member [2 are ornamental reinforcing or strengthening ribs I5.

The weather strip ll further includes integral wings l6 extending at an acute angle from the sides of the channel member l2 into the ways 1. This is shown to advantage in Fig. 1 of the drawings. The outer marginal portions of the wings 16 are rolled in a manner to form tubular beads or ribs I! which are slidably engageable in the channels 9 of the sashes 8. It will be observed that the channels 9 are substantially rounded to conform to the beads ll. If desired, the channels 9 may be lined with felt or other suitable material.

It is thought that the manner in which the invention functions will be readily apparent from tion of the parting strip 6.

a consideration of the foregoing. Briefly, the angularity of the wings I6 is such that the beads ll are engaged under tension in the channels 9 even when the window sashes 8 fit loosely and are unswollen, as seen in Fig. 1 of the drawings. The construction and arrangement is such that the weather strip flexes toward the sashes substantially from the central portion thereof where said weather strip is secured to the parting strip by the nailsl4. Should the sashes 8 swell or expand, as suggested in dotted lines in Fig. 1 of the drawings, the undercuts IQ of the parting strip 6 permit the side portions of the channel members [2 with the wings l6 thereon to flex inwardly thereby assuring sufiicient yielding without forcing the sashes away from said parting strip. During this action the beads I! rock or fulcrum in the channels 9. 'Of course, when the sashes shrink or contract again the beads I! follow them outwardly in the ways I and remain snugly seated in the channels 9. The sashes may be taken out of the frame, afterremoving the members 3 and 4, by pressing one side of said sashes toward the corresponding side of the frame sufficiently for the other side of said sashes to clear the corresponding beads I! and then taking said sashes out in a manner which is thought to be obvious.

The'embodiment of the invention illustrated in Fig. 5 of the drawings is adapted for engagement with a sash'on oneside only of the parting strip. Toward this end, the Fig. 5 modification comprises a member I8 of angular cross section which is adapted to be mounted on one side por- IB is provided with an anchoring lip or flange H! which is adapted to be embedded in the parting strip. Of course, other means may be employed for securing the member T8 in position. In other respects the Fig. 5 form of the invention is substantially similar to that illustrated in Figs. 1 and 2 of the drawings.

Referring now to the modification illustrated in Figs. 6, 7 and 8, of the drawings, it will be observed that the resilient wings I6 have their outer marginal portions formed to provide substantially'V-shaped beads or ribs 20. The substantially V-shaped beads or ribs are engageable and rockable in polygonal channels 2| which are provided therefor in the Vertical side edges of the sashes 8. Then, extending laterally from the beads or ribs 20 are flanges or lips 22 the free edges of which have sealing contact with the sides of the sashes 8. As the sashes 8 swell or expand in the ways 1 the substantially V-shaped Then, the member ribs 20 rock in said channels as the wings l6 are flexed toward the jamb 2, the free edges of the lips 22 maintaining contact with said sashes at all times.

The embodiment of the invention shown in Fig. 9 of the drawings is substantiallyv similar in operation to that illustrated in Figs. 6 to 8, inclusive, but is intended for use on a single sash. This embodiment comprises a member 23 of angular cross section, substantially similar to the member I8 in Fig. 5, adapted to be mounted on one side portion of the parting strip and including on one edge an anchoring flange or lip 24 adapted to be embedded in said parting strip.

'It is believed that the many advantages of a weather strip constructed in accordance with the present invention will be readily understood and although preferred embodiments of the device are as illustrated and described, it is to be understood that further modifications and changes in the details of construction may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A window comprising, in combination, a frame including a substantially dovetail shaped parting strip, sashes slidable in the frame on opposite sides of said parting strip, said sashes having vertical channels therein, and a weather strip for the sashes including a channel member mounted on the parting strip and including resilient sides engageable in the undercut portions of said parting strip, resilient wings integral with said sides of the channel member and projecting at an acute angle therefrom between the sashes and the frame, substantially V-shaped beads on the wings engaged and rockable in the channels in the sashes, and lips on 'said beads engaged with the sashes.

2. A window comprising, in combination, a frame including a parting striphaving an undercut side portion, a sash slidable in the frame, a Weather strip comprising a resilient member of angular cross section mounted on the parting strip, said Weather strip further including a wing extending laterally of the parting strip and yieldingly engaged with an edge of said sash, and means between the sash and the wing for sliding movement relative to said Wing whereby a portion of the resilient member will be caused to enter the undercut portion of the parting strip upon movement of the sash toward the frame.

REGINALD H. DUNI-IAM. 

